Trademark Opposition
Someone has opposed your trademark application. Here is what you need to do now.
If you have received notice that a third party has filed a Trademark Opposition against your application, the clock is already running. You have 30 business days from service of notice to file your response. If you fail to respond with the appropriate legal arguments, your trademark application may be refused.
A Trademark Opposition is a legal action filed before INAPI by a third party—usually the owner of an earlier trademark—requesting that your application be refused because they believe it affects their prior rights. Legally, an opposition initiates adversarial proceedings. From that point forward, you are no longer simply prosecuting an administrative application: you must defend it against a third party seeking its total or partial refusal.
This does not mean your trademark is lost. It means you need a well-prepared legal defense, filed on time and supported by the right arguments.
At Start Click®, we represent entrepreneurs, companies, and foreign clients facing Trademark Opposition proceedings in Chile, helping them defend their applications and pursue registration.
Why you cannot ignore a Trademark Opposition
The most costly mistake you can make at this stage is failing to respond on time—or responding without solid legal arguments.
If you do not file a response within the applicable deadline, the proceedings will continue without your defense, and you will lose the procedural opportunity to timely challenge the facts and legal grounds raised by the opponent. INAPI must still decide the case, but it will do so without the arguments that could have protected your application.
That can mean losing months of prosecution, the money already invested in the process, and returning to the same vulnerable position you were in before applying for registration: without registered protection for your name or logo.
A Trademark Opposition does not automatically mean that your application will be refused. The outcome will depend on the rights invoked, the similarity between the signs, the relationship between their respective goods or services, and the strength of the defense presented.
Why was a Trademark Opposition filed against your application?
Trademark oppositions in Chile are commonly based on circumstances such as:
✔ An earlier registered trademark similar to yours
✔ Likelihood of confusion between the trademarks in the marketplace
✔ Identity or similarity between the distinctive signs
✔ Lack of distinctiveness or descriptiveness of the sign
✔ A relationship between the goods or services covered by the respective trademarks
✔ Alleged infringement of previously acquired rights
✔ Allegations of bad faith, unfair advantage from another trademark’s reputation, or other statutory grounds for refusal
An opposition is filed after your application has been published in the Official Gazette and within the applicable statutory period. It is a legal mechanism that allows third parties to defend prior rights; it is not an advance determination that your trademark should not be registered.
Not every opposition is based on an identical or similar prior trademark. The defense must therefore address the specific statutory grounds invoked in the opposition rather than rely on a generic response.
How we defend your trademark against an opposition
Every Trademark Opposition should be legally assessed before determining the defense strategy. In many cases, there are solid grounds for pursuing registration, for example where:
- The conflicting trademarks have material differences
- The goods or services involved are not likely to be confused
- Your trademark has sufficient distinctiveness of its own
- The opposition relies on an overly broad interpretation of earlier rights
- Limiting the requested specification may be strategically appropriate, provided that it is legally possible and does not fundamentally alter the application
Our defense may include:
✔ Comparative analysis of the trademarks
✔ Arguments concerning visual, phonetic, or conceptual differences
✔ Analysis of the relevant goods, services, and classes
✔ Arguments demonstrating the absence of likelihood of confusion
✔ Limitation of the specification where strategically appropriate
✔ Evidence of use, market recognition, or coexistence where legally relevant to the grounds at issue
✔ Analysis of the validity, scope, and current status of the rights invoked by the opponent
✔ Review of the specific statutory grounds raised in the opposition
✔ Preparation and submission of evidence when an evidentiary stage is opened
✔ Assessment of coexistence agreements or limitations of coverage where legally viable and commercially appropriate
A well-structured defense can allow your application to proceed and ultimately result in registration.
A Trademark Opposition may require more than filing a response
Responding to the opposition is the first stage of the defense, but the proceedings may continue beyond that point.
If there are material, relevant, and disputed facts, INAPI may open an evidentiary stage. At that stage, supporting evidence must be submitted on time, which may include commercial documents, registrations, agreements, advertising materials, or other admissible evidence.
INAPI will subsequently issue a decision that may uphold or dismiss the opposition, in whole or in part, and determine the outcome of the trademark application.
Defending a trademark therefore involves more than filing an initial response. It requires monitoring the proceedings, meeting every deadline, and adapting the strategy as the case progresses.
Can you oppose someone else's trademark application?
Yes. If a third party applies to register a trademark that affects your prior rights—because it reproduces or resembles your trademark, may create a likelihood of confusion, falls within another statutory ground for refusal, or otherwise conflicts with your existing rights—you may file a Trademark Opposition to proactively defend your position.
The opposition must be filed within 30 business days following publication of the application extract in the Official Gazette. This is a strict, non-extendable deadline. Once it has expired, a conflicting trademark can no longer be challenged through an opposition.
At Start Click®, we also represent trademark owners seeking to oppose conflicting applications and protect the work and investment already made in their brands.
Deadlines: why acting quickly matters
- To file a Trademark Opposition: 30 business days from publication of the application extract in the Official Gazette.
- To respond to a Trademark Opposition: 30 business days from service of notice by INAPI.
Do not wait until the last day. Preparing a serious defense requires reviewing the opposition, the registrations relied upon, the respective specifications, relevant market circumstances, and the evidence available.
How to reduce the risk of Trademark Opposition before filing
The risk of opposition can be assessed before filing an application, although it can never be eliminated entirely.
Before filing, it is advisable to assess the viability of the trademark through a Trademark Search in Chile and define a Trademark Strategy designed to reduce the risk of future conflicts.
It is also advisable to monitor new applications through Trademark Watch, particularly once your trademark is registered and you want to identify potentially conflicting signs in time to act.
Prevention is particularly important when the trademark will be used in advertising, domain names, social media, packaging, or business expansion plans.
Legal representation in Trademark Opposition proceedings
At Start Click®, we advise entrepreneurs, Chilean companies, and foreign clients facing Trademark Opposition proceedings before INAPI.
Our services include:
✔ Analysis of the opposition filed against your application
✔ Realistic assessment of your defense prospects
✔ Preparation of legal submissions
✔ Strategy to pursue registration
✔ Representation throughout the proceedings
Our goal is to protect your application and increase the likelihood of ultimately securing registration of your trademark.
Frequently Asked Questions about
Trademark Opposition
What is Trademark Opposition?
A Trademark Opposition is a proceeding through which a third party asks INAPI to refuse a trademark application because they believe it affects prior rights or may create a likelihood of confusion in the marketplace.
When can a Trademark Opposition be filed?
It may be filed after publication of the trademark application in the Official Gazette and within the applicable statutory deadline.
What happens if I do not respond to a Trademark Opposition?
If you fail to respond within the applicable deadline, the proceedings will continue without your timely defense, and your application may ultimately be refused in whole or in part.
Can I defend my trademark against an opposition?
Yes. The defense may rely on differences between the trademarks, absence of likelihood of confusion, differences between the relevant goods or services, or other legal arguments applicable to the particular case.
Can Trademark Opposition be prevented?
It cannot always be avoided completely, but a prior trademark search and an appropriate filing strategy can significantly reduce the risk of facing an opposition.
Can I oppose someone else's trademark application?
Yes. If a new application affects prior rights you hold in a registered trademark, you may file a Trademark Opposition to defend those rights.
Do I need a lawyer to respond to a Trademark Opposition in Chile?
Yes. A Trademark Opposition is an adversarial proceeding, and the parties must appear through legal counsel. The defense must address the legal grounds invoked and, where appropriate, submit supporting evidence.
What happens if INAPI refuses my trademark after an opposition?
INAPI’s decision may be appealed before the Industrial Property Court within the applicable statutory deadline. Whether an appeal is advisable should be assessed based on the grounds of the decision, the available evidence, and the commercial importance of the trademark.
Defend your trademark application
If your application is facing a Trademark Opposition, every day counts. Acting within the deadline with a properly prepared defense can make the difference between losing your application and ultimately securing registration.
At Start Click®, we analyze your case and advise you throughout the proceedings.